Gem setting tool



lPatented Dec. 13, 193s dUNlTi-:D v STATES PATENT -oFFi-CE 'I'his invention relates to the setting fof gems; Yand has for one 'o1' its objects an improved tool for setting gems whereby the gems may be 'ise- ,f cured in their seats more quickly than'by tools YAnother object o'ffthe linvention is an improved i Y. vhandling of the gems to be set Aso that the fsam'e instrumentmay pick up` the gem and place it in its seat andthereafter be utilized for the ysecuring lO of the gem in position. y Another object of the'inventionis the vprovision lof a tool 'which will 'deflect portions of the fstock about the gem toward and over the edge ofthe gem at. a plurality of different points simull-' taneously so asto secure the gem in position.

` Another object of the invention is the provision of a tool which Will accomplish the setting of 'a I y" rgem by fa single movement of the tool in one direction', lsuclrfor instance, as'axially of the gem so Athat a single pressure operation may be-utilized forsetting the gem. v

Another object of the invention is the provision of a tool which will deflect the stock about a plug Y rality of gems simultaneously so -as to secure the gems in position all at the'same time.

' Another object of the invention is the provision of a tool the handle offwhich may be turneclor j rotated without the portion which applies 'presjsureto the gem also turninggwhereby an abrad- '.303 ing of the stone is prevented.

n. portion of the tool.

y i* Another objectof 'the invention is Athe settingof fagemvvithva toolhavin'g aha'mmer action. y l Withfthese and yoifherobects lin vieW,1the'inven-' tion consists of certain novel features `of-construc V 1540 tion, as will bemore fullyv described, and partic'uflarly pointed-out 'in 'the appended claims. In 'theaccompanyingdrawingt Fig. v1 is a sectional vievvV of a hammer actuated tool for settingo'f a gem;

F45.; Fig. 2 is asec'tional view of a hand' operated r`toolfvvithoutthis hammeraction'; l

i ,y Fig'.l 3 isa sectional view showing the setting mechanism as mountedin the headof apress which is illustrated fragmentally.

Y 4f'isfarperspective Avievv of thewvorking end jlofiatool'shank on a somewhat larger'fs'cal'e;

masas a view similarto Fig. 5 offs modin'ed if-form of shank; 'f

- l Fig. 6 is an Vendsectional view on substantially f '.Fig. "7. is a sectional 'view on substantially -line 1-1 Iof Fig. I5;

lIlig. l8 is Aasectional view showing an ornament 'and gernfbe'fore the faction of the setting tool;

Fig. `9 isa viewsiniilartoFig. 8 after the action 5 fofthesetting tool; l

l1'0 isa sectional view of a modied form oi.' 4tool showinga multiple setting arrangement.

the settingfoffgems :it isusual that the ornament into which the 'gems are set be cast or so 10 :formed -as to provide recesses for 'the reception of thelargergemssuch as the baguette or other :shaped fstones, while kfrequently the position of the smaller stones is vindicated by a small depression such las would be -made by a prick punch and Y15 a drill utilized'for forming the desired seat for the gem, different sized 'drills being utilized for 'different isized lgems.Y After the recesses or gem seats are provided 'in one or another way, the gems to rbe isetv therein are picked up zeither by 20 'tweezers .or by some tool with a recessed end which 'is wet'by the saliva vof the mouth or some waxis 'usedin the tool, so that 'the vgem will stick- .to 'the tool .for placing itin its seat, the gems befingpositioned one at a time, vin their seats or re- 25 fcessespai'tertwnicnzanother tool is taken and portions of the 'stock are 'deflected over these gems by :hand at two, 'three or more locations about the Vgem so asto "hold itin place. In the use of the largerfgems lthe rstockis usually raised somewhat about rthe gem seat, althoughthis is not essential, whereasginthe setting of some gems the surface is entirely '.at Aor in va single plane about the gem and a tool, sometimes a beading tool, is caused to dig into the 'stock close to theedge of the gem and 35 this 'stock 'lifted and deflected over the ledge of the gem to rholdit in position. To provide a bead the beading tool vis given a slight rotation to estab- '.lishia smooth surface on the bead which holds the gemin position, and oftentimes in the setting of 40 other' gems the stockv is 'trimmed by a highly `polishedtool to give a'shine to the stock about the `gem and also to smooth off the stock in this location.

lAll Vofthisgem setting thus requires many hand operations and requires a skilled operator in order to accomplish the results; and' in order tosimplify this operation and provide an arrangement whereby skilled operation is not necessary,

-' Ifhave provided a tool which may pick up the gem 50 and after placing the gem in its seat may be manipulated to in the same operation set the gem or dellect the stock rover the edge of the gem. This may befdone either by the rocking action fof ahand tool or by .a hammer action in the hand tool by the hammer being a part of the Yequipment of the handle, or the gem may be set in a press, pressure being equivalent to the hammer action. Then again I may utilize this invention for the deecting of the stock at a plurality of different points over not only one gem but I may provide a tool which will deflect the stock over a plurality oi different gems at the same time, thereby setting many gems with a single pressure or hammer operation; and it may be possible in some constructions to set allof the stones in the ornament at `the same time after they are positioned; and the following is amore detailed description of the present embodimentof this invention, illustrating the method or simplied operation by which these advantageous results may be accomplished:

With reference to the drawing, a tool Which may be used for accomplishing the desired setting is illustrated in a rather simple form in Fig.A 2. Here, the shank I0 is taperedfas atV II` and provided With a plurality of prongs I2 arcuate on ytheir inner face as at I3'. These prongs'maybe four innumber, as illustrated in perspective in Fig. 5 or in Fig. '7,or may be twoin number, as illustrated in Figs. 4 and 6, it'being' usual and preferred that the prongs be equally spaced about the circumference or 360,.sothat'if two prongs are provided they will be at Jdiametrically opposite points, rwhereas if four prongs a-reprovided they Will .be-equally spaced quarterly and diametrically opposite, as illustrated in Fig. T7

While the tool so far described may be utilized to perform an improved setting by reason of its being able to lift a plurality of different points of the stock over the edge of the gem, I prefer to provide a resiliently mounted presser member designated I5 andextending through a bore I6 in the shank to telescope thereinto. The enlarged head portion I1 of this' presser member vI5 slides'within the bore I8 in the shank and is Vforced downwardly by a spring I9 abutting at its:

outer end 25 against the inner surface 2 I 4of 'a cap 22 which has threaded engagement as at- 23 with the outer end of the shank. This spring engages at its opposite end 24 apresser member '25 which has a conical end 2E vtofengage a center opening 21 inthe head I1 of Ythe presser membervwhich :permits the shank to Vbe turned about its axis without turning the presser'member when ythe same is in engagement with the stone, and Whereby'the prongs'rmay be conveniently located with reference tothe setting or seat to perform their desired function. i

In` some cases`inst`ead of pro'vidingfa handle and cap such as shown'in'Fi'g. 2,"'a shank 39 may be provided with its tapered end A`portion I I and prongs I2, such" as previously illustrated, with 'a presser member I5,'also:as previously'described,

lvvithitsheald I1's-1iding withinra'bor'e 3I of this shank, with a spring'32forcingtli'e presser outwardly and abutting at'its'jupp'er endv33 with a vthreadedplug 34`which houses within theshank.

v its stock 83 over the edge of the' gem to rmly same downwardly in an axial direction, and in this case a rockingv movement of the handle may be given from side to side.

In some cases instead of using a simple hand pressure tool a hammer acting tool such as shown in Fig. 1 may be utilized.

In this case I have` illustrated a shank 4l) having a presser member I5 with setting prongs I2 on the shank, as above described, there being a head I1 and a spring 4I in the bore 42 of this shank, the same being threaded as at 43 at its upper end to threadingly engage the plunger 44 of a hammer actuating .handle device.

The plunger 44 is slidably mounted in the tubu- Y lar member 45 through the opening 46 by which it is guided, it being provided with an abutment member 41 within the bo-re 48 to limit its out- ,ward movement, and is provided with an upwardly extending pin 49 reduced as at 55 to provide ashoulder5l. j jj j A spring `52 encircles the pin 49 and acts upon the-abutment member 41'by reason of its engagement with the shoulder 53 of the nut 54 ywhich threadingly engages as at 55 the bore 48 of the tube 45 and provides an abutment for the spring, there being a ange 56 at its upper end to limit its movement into the bore. 51. is slidingly mounted within the'tubular mem- .ber 58 which threadingly engages the tubular member 45 to provide a. housing and guide for the parts. This tubularmembe-r 58 isV provided with a bore 59 and guides the hammer 51 and also with a larger bore 69 which receives the latch I slidingly mounted in the cross opening 52. A spring 63 serves to force the hammer downwardly'in the casing byV acting on its upper end @el with the other end of the spring 55 engaging the inner surface of the cap 5B, which has threaded engagement as( 61 with the casing 58.

A bore 68 in the hammer is of a'size to receive `the pin 49, while an'opening 59 in the latch iI is also of a size to receive thisfpin and to alignY lwith the bore '68 when the latch is within the bore 59, but when this latch is Within the bore Si! a spring 19 forces it so that its bore S9 is out `of line with the bore 58, such as shown in Fig. l,

The action of the device is as follows: As the casings.58 and 45 are forced downwardly they .slide along the plunger 44. By reason of the pin V49 engaging the latch 6I, `the hammer is forced upwardly against'the action' of its spring 63. When the latch 6I entersv Vthe bore 59 and is lforced into the position of the hole V69 inthe bore 68 aligning, the hammer 51 descends and the striking surface-'1I hits' the upper end 12, of the pin 49 with a blow Which'is transmitted to the Ashanklllandcauses a deiiecting ofthe stock over .the edge of the gem in-a desired manner, such as at 83 in Fig. 9.

InV someca'ses instead ofthe utilization of a tool for setting-"a single ygem I may provide a ftool having amultiple of setting' members each of which will act` similarly to the `setting member above described, and in Fig. 1 0 I have illustrated a tool Whichmay set gems 85 insettings 86 pro- A hammer vided with prongs 8l, there being plungers I5 in suitable parts 88 with recessedportions 89 to 'enga-ge and deflect the projections 81 in order vto hold the gem in position, or the shape of the vit to be understood' that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

j I` claim: v 1. A tool for gem setting comprising a tubular shank having a'plurality of stock engaging and 1 'deecting projections arranged to contact difiere ent points about the gem setting, and a member telescoping within said shank, resilient means for urging said member outwardly and arranged to contact the gem and seat the same while the proiections deflect said stock, and a conically pointed presser member through which the resilient means acts on said telescoping member.

i 2. A tool for gem setting comprising a tubular shank having a plurality ofn stock engaging and j y' ydeiilecting projections arranged to contact different points about the gem setting, resilient means n within said shank yand arranged to contact the gem ,and seat the same while the projections deiiect Said stock, and means connected to said shank adapted to apply a hammer action upon said shank.

3.v A tool for gem setting comprising a tubular L shank having a plurality of stock engaging and deiiecting projections arranged to contact diierent points about the gem setting, resilient means y within said shankand arranged to contact the gern and seat the same while the projections'deflect'said stock, a handle reciprocatingly mount- 'ed'v on said shank, and means responsive to the movement of the handle withreference to said shank arranged to apply a hammer action on said shank.

4. A tool for gem setting comprising a tubular shank having a plurality of stock engaging and deecting projections arranged to contact diierent points about the gem setting, resilient means Within said shank and arranged to contact the gem and seat the same while the projections deflect said stock, a handle reciprocatingly mounted on said shank, and means contained within said handle and responsive to the movement of the handle with reference to said shank arranged to apply a hammer action 'on said shank.

5. A tool for gem setting comprising a shank having a plurality of groups of stock engaging and deflecting projections arranged to contact 'different points about each of a plurality of different gems, and a resiliently mounted means for each group of projections located to engage the gern with reference to which the projections act to hold each gem on its seat during the action of said projections.

6. A tool for gem setting comprising a shank having a plurality of groups of stock engaging andr deflecting projections arranged to contact different points about each of a plurality of different gems, a recess in the shank above each gem when the tool is setting the same, a plunger in each recess, and resilient means urging each yplunger outwardly to engage the gem. and hold the-same againstv its seat as setting takes place.

7. A tool for gem setting comprising a shank having a plurality of groups of stock engaging and deflecting projections arranged to contact different points about each of a plurality of different gems, a recess in the shank above said gem when the tool is setting the same, a plunger in each recess, and a spring urging each plunger outwardly to engage the gem and hold the same against its seat as setting takes place.

RALPH C. BANGS. 

